It is the opposite now. You can hunt big game on most properties. They did a trial in the SE ones last year as the public land in the east part of the state is non-accessible.
Most of the properties in the state are now in yellow:
https://cpw.state.co.us/Documents/Ru...alkInAtlas.pdf
OP - you really need to get down there and check things out, I am not sure how many people hunt out there, but the WIA properties in certain areas get hit pretty hard by small game hunters. Especially once pheasant season opens. Finding a private landowner is your best bet. The WIA properties tend to be open fields.